16764985 has 8 divisors (see below), whose sum is σ = 20373120. Its totient is φ = 13241904.

The previous prime is 16764983. The next prime is 16764991. The reversal of 16764985 is 58946761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16764985 - 2¹ = 16764983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16764983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20827 + ... + 21616.

It is an arithmetic number, because the mean of its divisors is an integer number (2546640).

Almost surely, 2^16764985 is an apocalyptic number.

It is an amenable number.

16764985 is a deficient number, since it is larger than the sum of its proper divisors (3608135).

16764985 is an equidigital number, since it uses as much as digits as its factorization.

16764985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42527.

The product of its digits is 362880, while the sum is 46.

The square root of 16764985 is about 4094.5066857926. The cubic root of 16764985 is about 255.9377747933.

The spelling of 16764985 in words is "sixteen million, seven hundred sixty-four thousand, nine hundred eighty-five".